scholarly journals One-step bioengineering of magnetic nanoparticles via a surface diazo transfer/azide–alkyne click reaction sequence

2008 ◽  
pp. 621-623 ◽  
Author(s):  
Laura Polito ◽  
Diego Monti ◽  
Enrico Caneva ◽  
Eleonora Delnevo ◽  
Giovanni Russo ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Click Reaction ◽  
Reaction Sequence ◽  
One Step

scholarly journals Preparation of magnetic nanoparticles by one step synthesis with morphology of particles changed based on time of reaction and temperature treatment

2020 ◽  
Vol 16 (1) ◽  
pp. 1-10
Author(s):  
Tomáš Solný ◽  
Petr Ptáček ◽  
Tomáš Opravil ◽  
Lucie Dlabajová ◽  
Matěj Březina ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Temperature Treatment ◽  
One Step ◽  
Time Of Reaction

Succinate Functionalization of Hyperbranched Polyglycerol-Coated Magnetic Nanoparticles as a Draw Solute During Forward Osmosis

2015 ◽  
Vol 15 (10) ◽  
pp. 8279-8284 ◽  
Author(s):  
Hee-Man Yang ◽  
Hye Min Choi ◽  
Sung-Chan Jang ◽  
Myeong Jin Han ◽  
Bum-Kyoung Seo ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Succinic Anhydride ◽  
Water Flux ◽  
Forward Osmosis ◽  
Feed Solution ◽  
Carboxyl Groups ◽  
Solute Leakage ◽  
One Step ◽  
Hyperbranched Polyglycerol ◽  
The One

Hyperbranched polyglycerol-coated magnetic nanoparticles (SHPG-MNPs) were functionalized with succinate groups to form a draw solute for use in a forward osmosis (FO). After the one-step synthesis of hyperbranched polyglycerol-coated magnetic nanoparticles (HPG-MNPs), the polyglycerol groups on the surfaces of the HPG-MNPs were functionalized with succinic anhydride moieties. The resulting SHPG-MNPs showed no change of size and magnetic property compared with HPGMNPs and displayed excellent dispersibility in water up to the concentration of 400 g/L. SHPG-MNPs solution showed higher osmotic pressure than that of HPG-MNPs solution due to the presence of surface carboxyl groups in SHPG-MNPs and could draw water from a feed solution across an FO membrane without any reverse draw solute leakage during FO process. Moreover, the water flux remained nearly constant over several SHPG-MNP darw solute regeneration cycles applied to the ultrafiltration (UF) process. The SHPG-MNPs demonstrate strong potential for use as a draw solute in FO processes.

One-step synthesis of a graphene-carbon nanotube hybrid decorated by magnetic nanoparticles

Carbon ◽  
2012 ◽  
Vol 50 (8) ◽  
pp. 2764-2771 ◽  
Author(s):  
Xiao Zhu ◽  
Guoqing Ning ◽  
Zhuangjun Fan ◽  
Jinsen Gao ◽  
Chunming Xu ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Magnetic Nanoparticles ◽  
One Step

scholarly journals Characterization and Functionality of Immidazolium Ionic Liquids Modified Magnetic Nanoparticles

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Ying Li ◽  
Ning Tang ◽  
Fuyuhiko Inagaki ◽  
Chisato Mukai ◽  
Kazuichi Hayakawa
Keyword(s):  
Ionic Liquids ◽  
Magnetic Nanoparticles ◽  
Extraction Efficiency ◽  
Alkyl Chain ◽  
Organic Pollutant ◽  
High Adsorption ◽  
Transmission Electron ◽  
Polycyclic Aromatic ◽  
One Step ◽  
Modified Magnetic Nanoparticles

1,3-Dialkylimidazolium-based ionic liquids were chemically synthesized and bonded on the surface of magnetic nanoparticles (MNPs) with easy one-step reaction. The obtained six kinds of ionic liquid modified MNPs were characterized with transmission electron microscopy, thermogravimetric analysis, magnetization, and FTIR, which owned the high adsorption capacity due to the nanometer size and high-density modification with ionic liquids. Functionality of MNPs with ionic liquids greatly influenced the solubility of the MNPs with organic solvents depending on the alkyl chain length and the anions of the ionic liquids. Moreover, the obtained MNPs showed the specific extraction efficiency to organic pollutant, polycyclic aromatic hydrocarbons, while superparamagnetic property of the MNPs facilitated the convenient separation of MNPs from the bulks water samples.

scholarly journals Amphiphilic copolymer self-assembly of magnetic nanoparticles for construction of magnetically responsive photonic crystals based on steric hindrance

RSC Advances ◽  
2019 ◽  
Vol 9 (70) ◽  
pp. 41280-41286
Author(s):  
Meng Shang ◽  
Xinjiong Ni ◽  
Jiasheng Xu ◽  
Yuhua Cao
Keyword(s):  
Magnetic Nanoparticles ◽  
Photonic Crystals ◽  
Steric Hindrance ◽  
Self Assembly ◽  
Amphiphilic Copolymer ◽  
One Step

One-step self-assembly of magnetic nanoparticles with amphiphilic copolymer for construction of magnetically responsive photonic crystals based on steric hindrance.

scholarly journals Removal of Emulsified Oil from Aqueous Environment by Using Polyvinylpyrrolidone-Coated Magnetic Nanoparticles

Water ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 1993 ◽  
Author(s):  
Shao ◽  
Li ◽  
Lü ◽  
Qi ◽  
Zhang ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Surfactant Concentration ◽  
Solvothermal Method ◽  
Aqueous Environment ◽  
Food Industries ◽  
Effects Of Ph ◽  
One Step ◽  
Oily Wastewater Treatment ◽  
Neutral Conditions ◽  
Demulsification Efficiency

In recent years, a large amount of emulsified oily wastewaters were produced from petroleum and food industries, resulting in severe environmental problems. In this study, a series of polyvinylpyrrolidone (PVP)-coated Fe3O4 magnetic nanoparticles (MNPs) were prepared via one-step solvothermal method by introducing various amounts or types of PVP. The synthesized MNPs were characterized by multiple techniques, and their demulsification performances were evaluated in petrochemical and vegetable oil wastewaters, respectively. Results showed that the introduction of PVP in solvothermal process could significantly enhance the demulsification efficiency of MNPs, although excessive addition of PVP could not further increase its efficiency. Moreover, the effects of pH, surfactant concentration of wastewater, and the recycle number of MNPs on the demulsification performance were investigated in detail. It was found that the demulsification efficiency decreased with the increase of pH and surfactant concentration, and the synthetic MNPs were still effective after being reused for 5 cycles under acidic and neutral conditions. It is expected that the development of the PVP-coated MNPs can provide a simple and powerful route for the oily wastewater treatment.

scholarly journals One-step synthesis of polyethyleneimine-coated magnetite nanoparticles and their structural, magnetic and power absorption study

RSC Advances ◽  
2020 ◽  
Vol 10 (68) ◽  
pp. 41807-41815
Author(s):  
Lizbet León Félix ◽  
Marco Antonio Rodriguez Martínez ◽  
David Gregorio Pacheco Salazar ◽  
José Antonio Huamani Coaquira
Keyword(s):  
Magnetic Nanoparticles ◽  
Magnetite Nanoparticles ◽  
Biomedical Applications ◽  
Cancer Imaging ◽  
Absorption Study ◽  
Power Absorption ◽  
Chemical Surface ◽  
One Step

Magnetic nanoparticles (NPs) are especially interesting for several biomedical applications due to their chemical surface, especially for targeted cancer imaging and therapeutics.

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